CVE-2026-88206

HIGH CVSS 3.1: 7.5 EPSS 0.57%
Updated Oct 14, 2026
Microsoft
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions before 16.0.20326.20190
Fixed In 16.0.20326.20190
Type CWE-918 (Server-Side Request Forgery (SSRF))
Vendor Microsoft
Public PoC No

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Microsoft Sharepoint_Server
cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
— 16.0.20326.20190